About: http://webisa.webdatacommons.org/390074787

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A signal, such as a visual indication, is provided to the operator responsive to the signal to alert the operator of an excess slope condition.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com